After the cease-fire was brokered, the 19th Army was reassigned by Chiang Kai-shek to suppress Chinese Communist insurrection in Fujian. It won some battles against the Communists but then negotiated peace with them. Jiang Guangnai joined an insurrection that, on 22 November 1933, established a new People's Revolutionary Government of the Republic of China (Chinese: 中華共和國), free from the control of Chiang's Nanjing government. The new Fujian government was not supported by other warlords or by all elements of the communists and was quickly crushed by Chiang's armies in January 1934. Jiang escaped with his family to Hong Kong and the rest of the army was disbanded and reassigned into other units of the National Revolutionary Army.

Most high-ranking officials struggled with the Red Guards during the Cultural Revolution. Jiang, however, was saved by Zhou Enlai. Zhou carefully and cleverly arranged for Jiang to join him and Mao Zedong on Tiananmen to inspect the Red Guards, some of whom had just stormed Jiang's home the previous day. During the inspection Jiang was positioned almost next to Mao. Zhou personally walked over to Jiang in front of the Red Guards, asking him how he was doing after the "visit" by the Red Guards the day before. In front of Mao, Jiang was quick to reply that the Red Guards were still relatively civilized. After that, they did not bother Jiang again. He died in 1967 in Beijing.